Ear plug



FIG. 1 is a perspective view of a first embodiment of the ear plug showing a front side;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a is side view thereof;

FIG. 5 is another side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof. 

The ornamental design for an ear plug, as shown and described. 